vobTools contains programs which can manipulate MPEG2 VOB files, such as those found on a DVD. vobTools does not include DeCSS or css-cat (which decrypt the Content Scrambling System).
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.